Seeking expert testimony is a sign of strength. A personal relationship with a caring professional is proven clinically effective
I believe that I can help you.
This man is a very manipulative and controlling man, who uses this method of silent treatment to be able to bend you to his will. It is a most cruel behavior.
It is very possible that this man has Narcissistic Personality Disorder. These people are very controlling, have absolutely no empathy or care for the feelings of others. They are not capable of having empathy. THey are sociopaths.
They get enjoyment from dominating others and usually blame the other person and make themselves the victim, or claim that they are.
He has you exactly where he wants you, and when you are sufficiently crushed he may "take you back".
You may consider breaking up with him and moving on with your life. You are a young woman.
Let me suggest two books that might give you a lot of insight.
I do not believe that the nature of this relationship will ever change. You must decide if it is worth keeping or making the painful move of breaking it off.
I believe that in the long run you can be must happier without him.
I will keep you in my prayers.
Elliott, MAE, LPCC, NCC, CCMHC